Liver surgery in the multidisciplinary management of gastrointestinal stromal tumour

Ferdinando C M Cananzi1, Ajay P Belgaumkar, Bruno Lorenzi

  • 1Department of Surgery, The Royal Marsden, London, UK.

Abstract

Insights

Surgical resection after tyrosine kinase inhibitors (TKIs) improves survival for metastatic gastrointestinal stromal tumour (GIST) liver disease. Complete tumor removal (R0 resection) and good TKI response predict better outcomes, guiding treatment decisions.

Area of Science:

  • Oncology
  • Surgical Oncology
  • Gastrointestinal Oncology

Background:

  • The role of surgical resection for liver metastasis in gastrointestinal stromal tumour (GIST) after tyrosine kinase inhibitor (TKI) introduction remains unclear.
  • Evaluating outcomes for metastatic GIST patients treated with TKIs followed by surgery is crucial.

Purpose of the Study:

  • To assess the survival outcomes of patients with metastatic GIST who underwent liver resection after TKI therapy.
  • To identify predictors of survival in this patient cohort.

Main Methods:

  • Retrospective review of eleven patients with metastatic GIST who underwent liver resection after TKI therapy between 2006 and 2010.
  • Analysis of overall survival rates and recurrence based on resection status and clinical response to TKIs.

Main Results:

  • One and two-year overall survival rates were 80.8% and 70.7%, respectively.
  • Patients achieving R0 resection had no observed deaths (P=0.001).
  • Patients operated on clinical response showed superior survival (100% 1- and 2-year OS) compared to those with disease progression (60% and 40%, P=0.043).

Conclusions:

  • R0 resection and clinical response to TKIs are significant predictors of survival in metastatic GIST.
  • Surgical resection should be considered early for responding patients.
  • The optimal approach for metastatic GIST requires further investigation in larger studies.